Microfiche having integral indexing means

Microfiche having integral indexing means

Microfilm aperture card, in particular camera card

Notebook computer with projection function

One piece transparency mount with spring transparency restraint

Overhead projector illustration slate

Photo viewing assembly

Photographic slide assembly and projector

Pinhole microfiche recorder and viewer

Presentation and storage folder allowing projection of...

Projection device and loop box therefor

Projector cartridge for a filmstrip and a tape cassette

Projector leveling and focusing aid and method of using same

Protecting device for transparencies

Protecting device for transparencies

Protection device for transparencies for overhead projectors

Registry device for transparencies for overhead projector

Reusable presentation frame for overhead transparencies

Securing device for transparent documents in a flatbed...

Securing device for transparent documents in a flatbed...